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Definition
done with another organism
takes more time and energy
gives offspring a greater capacity of faster adaptations |
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producing by itself
1 parent has all genes represented in next generation
takes less time to reproduce than with sexual reproduction |
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| thick fluid that nearly all animal eggs contain to nourish embryonic stages |
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| a ball of blastomeres and a cavity filled with their own secretions |
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| one of the small, nucleated cells that forms during the cleavage stage of animal development |
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| early animal embryo with two or three primary tissue layers |
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| first-formed, outer primary tissue layer of animal embryos |
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| inner primary tissue layer of animal embryos |
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| primary tissue layer that gives rise to many internal organs and part of the integument |
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| one of the many paired segments in a vertebrate embryo that gives rise to most bones, skeletal muscles of the head, and the dermis. |
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| pigmented region of the cell cortex of amphibian eggs |
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| accumilation of different kinds of proteins or RNAs in specific regions of the egg cytoplasm |
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| embryonic and evolutionary forerunner of the brain and spinal cord |
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| selective gene expression |
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Definition
| outcome of controls over which gene products a cell makes or activates in a specified interval |
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| different cell lineages selectively express a different fraction of their genome |
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| tissues and organs form by a program of orderly changes |
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| a change in the composition, structure, or both of cells in an embryo by exposure to signals from the cells of nearby tissues |
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| the sculpting of tissues and organs from clumps of cells in the proper places |
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| one of the genes encoding the products that map out the body plan in developing embryos |
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| helps determine identity of body parts during embryonic development |
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| a cap of reproductive DNA sequences on the end of a chromosome |
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